1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.security.auth;
24  
25  import com.liferay.portal.NoSuchGroupException;
26  import com.liferay.portal.NoSuchUserException;
27  import com.liferay.portal.kernel.util.StringPool;
28  import com.liferay.portal.kernel.util.StringUtil;
29  import com.liferay.portal.service.GroupLocalServiceUtil;
30  import com.liferay.portal.service.UserLocalServiceUtil;
31  
32  /**
33   * <a href="ScreenNameGenerator.java.html"><b><i>View Source</i></b></a>
34   *
35   * @author Brian Wing Shun Chan
36   * @author Alexander Chow
37   */
38  public class ScreenNameGenerator {
39  
40      public String generate(long companyId, long userId, String emailAddress)
41          throws Exception {
42  
43          String screenName = StringUtil.extractFirst(
44              emailAddress, StringPool.AT).toLowerCase();
45  
46          screenName = StringUtil.replace(
47              screenName,
48              new String[] {StringPool.SLASH, StringPool.UNDERLINE},
49              new String[] {StringPool.PERIOD, StringPool.PERIOD});
50  
51          if (screenName.equals(ScreenNameValidator.CYRUS) ||
52              screenName.equals(ScreenNameValidator.POSTFIX)) {
53  
54              screenName += StringPool.PERIOD + userId;
55          }
56  
57          try {
58              UserLocalServiceUtil.getUserByScreenName(companyId, screenName);
59          }
60          catch (NoSuchUserException nsue) {
61              try {
62                  GroupLocalServiceUtil.getFriendlyURLGroup(
63                      companyId, StringPool.SLASH + screenName);
64              }
65              catch (NoSuchGroupException nsge) {
66                  return screenName;
67              }
68          }
69  
70          for (int i = 1;; i++) {
71              String tempScreenName = screenName + StringPool.PERIOD + i;
72  
73              try {
74                  UserLocalServiceUtil.getUserByScreenName(
75                      companyId, tempScreenName);
76              }
77              catch (NoSuchUserException nsue) {
78                  try {
79                      GroupLocalServiceUtil.getFriendlyURLGroup(
80                          companyId, StringPool.SLASH + tempScreenName);
81                  }
82                  catch (NoSuchGroupException nsge) {
83                      screenName = tempScreenName;
84  
85                      break;
86                  }
87              }
88          }
89  
90          return screenName;
91      }
92  
93  }